Drag and Drop failure

[gotyaoi]

Window manager is openbox 3.5.2. File manager is spacefm 1.0.4 host is win7 64bit, fully updated guest is gentoo linux 64bit, kernel version 4.0.9

Attempting to drag a file from the host to the guest never starts. The cursor never changes from the "can't do that here" icon. Releasing the drag while over the spacefm window has no effect. Guest additions are installed and started, copy paste works, both shared clipboard and drag and drop are set to bidirectional. Haven't tried guest to host.

Logs are attached, but the relevant portions are these, I think:

host

00:01:05.858907 DnD: Offered formats to guest:
00:01:05.858939 DnD: 	text/uri-list

guest

23:01:43.560189 00007ff0ea600780 main     DnD: Started
23:01:43.560215 00007ff0ea600780 main     DnD: 5.0.8_OSEr103449
23:02:10.685773 00007ff0ea600780 main     DnD: Entered new window 0x1000013 ('/home/myusername/Desktop'), supports Xdnd version=5
23:02:10.690882 00007ff0ea57e700 dndX11   DnD: Target window 0x1000bdc ('spacefm') is asking for data as 'text/uri-list'
23:02:10.716603 00007ff0ea57e700 dndX11   DnD: Target window 0x1000bdc ('spacefm') is asking for data as 'text/uri-list'

that last line repeats whenever I move the mouse in the window until I release the drag.

[pentagonik]

Does this still happen with latest VBox 5.2.18 (with Guest Additions 5.2.18 installed)?